I would like to use one that is more anonymous than the AppStore and that guarantees security and privacy. Do not know what?
not an answer to your question, but i’d like to drop this here for any Android users that read this topic: F-Droid is an excellent repository for Android apps - they build from source and according to an independent study in 2017, it was the only repo to be free of malware
I suggest using either the yalp store or the aurora store from the fdroid store as an replacement for the play store, they are open source clients to download anything that is found on the play store without even having a Google account.
If you’re talking Apple, no. There are options for jailbroken phones, but I don’t ever suggest anyone bother with that.